Device foe regulating the pressure of water in pipes



J. STRATTON. WATER PR ssURR REGULATOR.

No. 28,616. PatentedJune 6, 1860.

* UNITED STATES PATNT OFFICE.

J AMES STRATTON, OF

DEVICE FOR. REGULATING THE Specification of Letters Patent To all whom it may concern:

Be it known that I, JAMES STRATTON, of Brooklyn,'in the county of Kings and State of New York, have invented certain new and useful Improvements in an Apparatus or Device for Regulating the Pressure of IVater in Pipes; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which Figure 1 is a vertical central section of my invention. .Fig. 2 a detached plan view of a valve cap or chamber.

. This invention relates to an improvement on a device for regulating the pressure of water in pipes for which Letters Patent were granted to me bearing date the twenty second day of November 1859. This patented device consists of an air chamber provided with a plunger or yielding bottom to which a valve stem is attached, the air chamber and valve being arranged in connection with suitable pipes and in such relation with the supply pipe as to effect the desired end.

The object of the invention aforesaid is to regulate the pressure of water in pipes so that the latter will not be subjected to any more pressure than is actually necessary to force the water the desired height, thereby guarding against the bursting or rupturing of the pipes and obviating the employment or use of those heavier and stronger than is necessary to sustain a pressure due to the required height of the column of water Within them.

In putting up or applying the invention aforesaid it has been found that the air chamber is soon rendered inefficient in consequence of the absorption of the air by the water which is in contact with it under pres sure, and that the slamming of a valve connected with the device is very objectionable.

The object of the within described invention is to obviate these difficulties.

To enable those skilled in the art to fully understand and construct my invention I will proceed to describe it.

A, represents a supply pipe which is placed within a building and extends up as high as the water is designed to be carried. This pipe A, may have branch pipes attached to carry the water to diiferent apartments of a building as may be required and the upper part of pipe A, is curved and bent BROOKLYN, NET/V YORK.

PRESSURE OF WATER IN PIPES.

No. 28,616, dated June 5, 1860.

down over a cap a, at the upper end of a pipe A, as shown clearly in the drawing.

The lower end of pipe A, is attached to a pipe B, which has a valve C, at its bottom, the stem of said valve being attached to an elastic diaphragm D, which forms the bottom of an air chamber E, and divides the latter from the pipe B, the air chamber E, communicates with the pipe B, by means of a pipe F, the Valve 0, intervening between the lower end of'pipe F, and the upper part of pipe B, as plainly shown in Fig. 1. The pipe F, communicates with the pipe B, at a point between the diaphragm D, and valve C, by a pipe G. The pipe F, is provided with two cocks H, I, one H, being above the pipe G, and the other I, below it. The pipe communicates at its lower end directly with the service pipe which is connected with the reservoir.

The lower end of the pipe A, communicates with the lower part of the air chamber E, above the diaphragm D, as shown'clearly in Fig. 1. J, is a cap or chamber which is screwed on the lower end of the pipe B. This cap or chamber incloses the valve 0. The bottom of the cap J, has a small central opening 7), made in it and a series of holes 0, is made in the upper part of the cap as shown clearly in Figs. 1 and 2.

V The operation is as follows: Suppose for instance that the height of the head in the reservoir exceeds considerably the height to which the supply pipe A, is to carry the water in the building. The pipe A, is made a trifle higher than the water is to be elevated in the building. The cocks H, I, are opened and the water will pass up the service pipe and enter cap J, closing the valve G, and passing up through pipe F, into the air chamber E, and pipe A, and through the pipe G, into the supply pipe A. When the water flows out from the upper end of the pipe A, the cooks H, I, are closed and the compressed air in E, together with the height of the column of water in pipe A, will counterpoise, or nearly counterpoise, the upward pressure against valve C, at the water in A, acts against the pressure in E, combined with the gravity of the water in A. WVhen therefore any water is drawn from A, at any point the equilibrium on the valve G, is destroyed, the pressure in E, and the gravity of the water in A, preponderlower part of pipe B, as the gravity of the v ating, and the valve C, is forced down and opened in consequence of 1ts connection with the diaphragm D, and the water from the' surface pip'e passes up through B, into A, to supply the amount drawn therefrom and to equilibrate asbefore the pressure on the upper and lower surfaces of valves C. In case the air in chamber E, should be absorbed, as it will to some extent by the water in contact with it, the gravity of the column of Water in A, may be made to make up the deficiency, the pipe A, being supplied from time to time as occasion may require. The cap or chamber J, prevents the slamming of the valve or a too sudden action in opening and closing. This efiect is due to the restriction the cap or chamber J, offers to the rising Water in coming in contact with the valve, and the restriction of the water in passing out of the cap or chamber as the valve is made to descend in opening.

I do not claim the air-chamber, diaphragm and valve with the pipes arranged with the air chamber, service and supply pipes as shown, for these parts were formerly used by me and patented as previously alluded to, but

I do claim as new and desire to secure by Letters Patent 1. The employment or use of the pipe A, communicating with the diaphragm chamber, with or without the air chamber, in connection with the supply pipe A, valve 0, and pipes B, F, G, with necessary cock or cocks; arranged to operate substantially as and for the purpose set forth.

2. In connection with the above named parts, the perforated cap or chamber J, encompassing the valve G, substantially as and for the purpose set forth.

JAMES STRATTON.

Witnesses:

CHARLES HUGHES,

O. D. MUNN. 

